Lord Hanuman and Bhima (one of the Pandava brothers) are believed to be the son of Lord Vayu. Bhima took much pride in his physical strength and considered everyone below him. Once during the exile, Hanuman posed before Bhima as an old and frail monkey who was blocking his path. As he was tired, the monkey asked Bhima to remove his tail. Though amused at the request, Bhima went ahead to lift his tail. He tried with all his might but was unable to move the tail even by an inch. Realizing his folly, Bhima apologized to the monkey upon which Hanuman revealed his true identity and just like that lord Hanuman reduced the arrogance of Bhima.